I tried to enter the command nano ~/.bashrc in order to include some path into the .bashrc file in home directory but I'm not able to run any command and I get always the following error:

rag@rag-Satellite-C640:~$ nano ~/.bashrc
Command 'nano' is available in the following places
* /bin/nano
* /usr/bin/nano
The command could not be located because '/usr/bin:/bin' is not included in the PATH environment variable.
nano: command not found